Haircutting case insert



FIG. 1 is a top plan view of a haircutting case insert showing my new design;

FIG. 2 is a perspective view thereof; and,

FIG. 3 is a perspective view thereof.

The broken line showing of the case and case handle in FIGS. 1 and 3, and the case flap and haircutting implements shown in FIG. 3 is included for the purpose of illustrating portions of the environment of the haircutting case insert and forms no part of the claimed design. 

The ornamental design for a haircutting case insert, as shown and described. 